Can i put my sim card into a Iphone 3g?

I have a contract with att. My sister recently just got the iphone 3gs and gave me her old 3g. Can i just use my old sim card or do i have to get a new one? my sim card is fairly new and i use 3g internet on my phone. Also will my bill only rise 30$ or will it rise more with things like activation fees?

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  • Favorite Answer

    They will automatically add the $30 a month data plan. You won't have to pay an activation.

  • 1 decade ago

    Yes you can put your sim form your other phone into the iphone your sister gave you. I have two phone from at&t one is iphone and the other is PDA and I exchange the sim card all the time. No your bill will not rise.

  • 1 decade ago

    Your sim card should work. Your only extra charge shoyuld be the $30 data plan.

    Source(s): iPhone owner
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